CGT-H2100 Hydrogen Gas Detector
Flameproof design with Ex db IIC T6 certification and IP66 ingress protection, suitable for gas and dust hazardous explosive zones.
Product Description
CGT-H2100 Hydrogen Combustible Gas Detector for BESS
Test Gas: H₂(hydrogen gas)
Sensor Type: conduction of heat
Sensor Service Life: 15 years
Working temperature: -40℃ to 70℃
Protection Rating: IP66
Certification: ATEX, IECEx, CE, RoHS
Product Advantages
1. Long service life & calibration-free
Thermal conductivity sensor with a 15-year service life under normal working conditions, cutting frequent calibration costs.
2. Explosion-proof & high protection rating
Flameproof design with Ex db IIC T6 certification and IP66 ingress protection, suitable for gas and dust hazardous explosive zones.
3.Dual alarm output
Two-stage hydrogen alarm (Low: 10%LEL / High: 25%LEL), dual signal transmission via RS485 and two dry contact relays.
4. Wide operating condition adaptability
Stable operation at -40℃ ~ +70℃ and 5%~95%RH, ideal for harsh energy storage environments.
5. Modular & easy maintenance
Split housing design, simple dust cleaning every 6 months, on-site parameter configuration via infrared remote controller.
6. Anti-interference performance
Built-in reverse power protection, single-point shield grounding for RS485 bus; supports networking of up to 32 detectors on one bus.
Product Images
Product Certificate
The product has obtained international certifications such as ATEx, IECEx, CE, and ROHS.
Installation location
Product parameters
| Type | Specific parameters |
| Appearance parameter | |
| Pigment | dark grey |
| Shell material | die-casting aluminium |
| Outline dimension | approximately 100 mm × 78 mm × 53 mm |
| Product weight | approximately 420 g |
| Function parameter | |
| Test gas | H₂ (hydrogen gas) |
| Sensor type | electrochemical sensor |
| Sample mode | natural diffusion |
| Detection range | (0~ 100)% LEL |
| Operate mode | continuous monitoring |
| Alarm value setting range (Two-level alarm) |
The minimum factory alarm threshold is set at 10% LEL. The maximum alarm threshold for factory output is set at 25% LEL. |
| Alarm error | ±3%LEL |
| Range indication deviation | allowable error: ± 5% LEL |
| Alarming light visibility | > 5 m (in darkness) |
| Response time | ≤ 15s |
| Call time | ≤ 15s |
| Resolution ratio | 0.1%LEL |
| Zero drift range | ≤ 3%LEL |
| Sensor service life | normal monitoring environment for 15 years |
| Electrical parameters | |
| Working voltage | 18VDC-32VDC |
| Rated voltage | 24VDC |
| Power dissipation | ≤ 1W |
| Working current | ≤15 mA |
| Alarm current | ≤ 35mA |
| Maximum current | ≤ 35mA |
| Output signal | RS485 (optional) [The communication address defaults to 1 at factory; a built-in 120Ω matching resistor is not connected by default and can be enabled using a jumper cap] |
| Baud rate | 9600 bps |
| Dry contact 1 – Low alarm relay | Group 1: Contact capacity (resistance load): 1A @30VDC; 300 mA @ 125VAC. Factory default: Open during normal operation, close during alarms, open during power loss. |
| Dry contact 2 – High alarm relay | Group 1: Contact capacity (resistance load): 1A @30VDC; 300 mA @ 125VAC. Factory default: Open during normal operation, close during alarms, open during power loss. |
| Indicate way | |
| Pilot lamp | 3 LED status lights |
| State indication | 1. During normal operation: The green indicator light remains illuminated continuously |
| 2. In case of a malfunction: The yellow indicator light remains constantly illuminated. | |
| 3. Alarm indication: When the lower limit is exceeded, a red light flashes; when the upper limit is exceeded, the red light remains on continuously. | |
| 4. During the upgrade process: Red, yellow, and green lights will flash alternately. | |
| Upgrade and configuration parameters | Can be connected to a computer via the RS485 bus (optional) |
| Certification and protection level | |
| Attestation | ROHS， CE ，ATEx， IECEx |
| Protect grade | IP66 |
| Explosion-proof mark |
II2 G Ex db IIC T6 Gb II2 D Ex tb IIIC T80°C Db |
Application Scenarios
Real-time hydrogen concentration monitoring for power storage stations, energy storage containers, battery cabinets and battery compartments. Compatible with Zone 1/2, IIA/IIB/IIC explosive gas and dust hazardous environments.
FAQ
Q1: What are the factory-set alarm thresholds and detection range?
A1: Measuring range: 0~100%LEL hydrogen; factory low alarm at 10%LEL, high alarm at 25%LEL. Thresholds adjustable via remote controller.
Q2: What is the power supply range and communication parameter?
A2: Operating voltage: 18~32VDC (rated 24VDC); RS485 baud rate: 9600, max. 32 detectors per bus.
Q3: What do different indicator light statuses mean?
A3: Steady green = normal operation; steady yellow = fault; flashing red = low alarm; steady red = high alarm.
Q4: What are the regular maintenance cycles for the sensor?
A4: Clean dust on air inlet every 6 months; conduct alarm test once a year; recheck measurement accuracy annually after the end of service life.
Q5: Mandatory installation & explosion-proof requirements?
A5: Install vertically with sensor pointing downward; reliable housing grounding (ground resistance ＜4Ω); never open the housing live in hazardous areas.
